Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$278M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$84.4M |
| 3 |
NVIDIA
NVDA
|
+$76.9M |
| 4 |
TSMC
TSM
|
+$74.9M |
| 5 |
Amazon
AMZN
|
+$53.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$497M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$73.7M |
| 3 |
Alibaba
BABA
|
+$49M |
| 4 |
Advanced Micro Devices
AMD
|
+$48.1M |
| 5 |
Uber
UBER
|
+$41.8M |
Sector Composition
| 1 | Technology | 22.9% |
| 2 | Consumer Discretionary | 12.26% |
| 3 | Healthcare | 9.52% |
| 4 | Communication Services | 8.42% |
| 5 | Financials | 7.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
SVC
1001
Service Properties Trust
SVC
$469M
| $127K | ﹤0.01% |
48,942
+23,189
| +90% | +$60.2K |
|
1002
Arbutus Biopharma
ABUS
$886M
| $126K | ﹤0.01% |
36,129
+16,222
| +81% | +$56.6K |
|
|
JMIA
1003
Jumia Technologies
JMIA
$1.19B
| $126K | ﹤0.01% |
58,929
-85,515
| -59% | -$183K |
|
1004
SpartanNash
SPTN
$900M
| $126K | ﹤0.01% |
+6,238
| New | +$126K |
|
1005
iShares MSCI United Kingdom ETF
EWU
$2.95B
| $125K | ﹤0.01% |
+3,356
| New | +$125K |
|
1006
Immunic
IMUX
$84.1M
| $124K | ﹤0.01% |
114,253
-1,709
| -1% | -$1.86K |
|
1007
Invesco KBW Property & Casualty Insurance ETF
KBWP
$482M
| $124K | ﹤0.01% |
1,000
+752
| +303% | +$93.2K |
|
1008
GraniteShares ETF Trust GraniteShares 2x Long NVDA Daily ETF
NVDL
$4.45B
| $124K | ﹤0.01% |
3,334
-223
| -6% | -$8.29K |
|
1009
Praxis Precision Medicines
PRAX
$847M
| $124K | ﹤0.01% |
3,298
-13,556
| -80% | -$510K |
|
1010
W.W. Grainger
GWW
$47.5B
| $124K | ﹤0.01% |
126
-420
| -77% | -$413K |
|
1011
HP
HPQ
$26.5B
| $124K | ﹤0.01% |
+4,502
| New | +$124K |
|
1012
Acacia Research
ACTG
$304M
| $123K | ﹤0.01% |
38,447
+38,135
| +12,223% | +$122K |
|
1013
Amprius Technologies
AMPX
$1.02B
| $123K | ﹤0.01% |
+46,103
| New | +$123K |
|
|
BZUN
1014
Baozun
BZUN
$258M
| $123K | ﹤0.01% |
45,135
+4,603
| +11% | +$12.5K |
|
1015
Dana Inc
DAN
$2.73B
| $123K | ﹤0.01% |
9,228
-59,426
| -87% | -$792K |
|
1016
Bit Digital
BTBT
$945M
| $122K | ﹤0.01% |
60,460
-40,626
| -40% | -$82K |
|
1017
LPL Financial
LPLA
$27.4B
| $122K | ﹤0.01% |
+375
| New | +$122K |
|
1018
Archrock
AROC
$4.35B
| $121K | ﹤0.01% |
+4,624
| New | +$121K |
|
1019
Gerdau
GGB
$6.17B
| $121K | ﹤0.01% |
42,668
+42,471
| +21,559% | +$120K |
|
|
SKE
1020
Skeena Resources
SKE
$2.05B
| $121K | ﹤0.01% |
+12,049
| New | +$121K |
|
1021
Global X Blockchain & Bitcoin Strategy ETF
BITS
$39M
| $120K | ﹤0.01% |
2,373
-48,450
| -95% | -$2.45M |
|
1022
Euronet Worldwide
EEFT
$3.57B
| $120K | ﹤0.01% |
1,129
-514
| -31% | -$54.6K |
|
1023
MannKind Corp
MNKD
$1.71B
| $120K | ﹤0.01% |
23,920
-1,196
| -5% | -$6K |
|
1024
Lithia Motors
LAD
$8.64B
| $119K | ﹤0.01% |
406
-4
| -1% | -$1.17K |
|
|
LB
1025
LandBridge Company LLC
LB
$1.33B
| $119K | ﹤0.01% |
+1,661
| New | +$119K |
|